HEADER    TRANSFERASE/TRANSFERASE INHIBITOR       26-JUL-11   3T4P              
TITLE     CRYSTAL STRUCTURE OF O-ACETYL SERINE SULFHYDRYLASE FROM LEISHMANIA    
TITLE    2 DONOVANI IN COMPLEX WITH DESIGNED TETRAPEPTIDE                       
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: O-ACETYL SERINE SULFHYDRYLASE;                             
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 2.5.1.47;                                                        
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MOL_ID: 2;                                                           
COMPND   7 MOLECULE: TETRAPEPTIDE DWSI;                                         
COMPND   8 CHAIN: B;                                                            
COMPND   9 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: LEISHMANIA DONOVANI;                            
SOURCE   3 ORGANISM_TAXID: 5661;                                                
SOURCE   4 STRAIN: MHOM/IM/1983/AG83;                                           
SOURCE   5 GENE: LDOASS, OASS;                                                  
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET21C;                                   
SOURCE  11 MOL_ID: 2;                                                           
SOURCE  12 SYNTHETIC: YES;                                                      
SOURCE  13 OTHER_DETAILS: PEPTIDE SYNTHESIS-GENPROBIOTECH                       
KEYWDS    CYSTEINE SYNTHASE, THE TRYPTOPHAN SYNTHASE FAMILY (FOLD TYPE II),     
KEYWDS   2 SERINE ACETYL TRANSFERASE, SULFHYDRYLASE, SULFHYDRYLASE-INHIBITOR    
KEYWDS   3 COMPLEX, PEPTIDE-OASS COMPLEX, TRANSFERASE-TRANSFERASE INHIBITOR     
KEYWDS   4 COMPLEX                                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    I.RAJ,S.GOURINATH                                                     
REVDAT   5   06-DEC-23 3T4P    1       REMARK                                   
REVDAT   4   01-NOV-23 3T4P    1       REMARK SEQADV LINK                       
REVDAT   3   08-NOV-17 3T4P    1       REMARK                                   
REVDAT   2   12-MAR-14 3T4P    1       JRNL                                     
REVDAT   1   01-AUG-12 3T4P    0                                                
JRNL        AUTH   I.RAJ,S.KUMAR,S.GOURINATH                                    
JRNL        TITL   THE NARROW ACTIVE-SITE CLEFT OF O-ACETYLSERINE SULFHYDRYLASE 
JRNL        TITL 2 FROM LEISHMANIA DONOVANI ALLOWS COMPLEX FORMATION WITH       
JRNL        TITL 3 SERINE ACETYLTRANSFERASES WITH A RANGE OF C-TERMINAL         
JRNL        TITL 4 SEQUENCES                                                    
JRNL        REF    ACTA CRYSTALLOGR.,SECT.D      V.  68   909 2012              
JRNL        REFN                   ISSN 0907-4449                               
JRNL        PMID   22868756                                                     
JRNL        DOI    10.1107/S0907444912016459                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.77 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC                                               
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.77                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 34.69                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 29394                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.178                           
REMARK   3   R VALUE            (WORKING SET) : 0.177                           
REMARK   3   FREE R VALUE                     : 0.208                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.900                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1527                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.77                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.82                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 2144                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.60                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2520                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 109                          
REMARK   3   BIN FREE R VALUE                    : 0.3110                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2427                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 8                                       
REMARK   3   SOLVENT ATOMS            : 166                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 20.64                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.60000                                             
REMARK   3    B22 (A**2) : -0.64000                                             
REMARK   3    B33 (A**2) : 1.24000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.118         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.112         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.066         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.020         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.959                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.946                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  2473 ; 0.030 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  3346 ; 2.325 ; 1.990       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   321 ; 6.619 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    89 ;36.064 ;24.494       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   430 ;15.387 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    13 ;20.914 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   389 ; 0.192 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1808 ; 0.014 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  1599 ; 1.503 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2571 ; 2.463 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   874 ; 4.144 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   775 ; 6.534 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 3T4P COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 09-AUG-11.                  
REMARK 100 THE DEPOSITION ID IS D_1000067033.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 10-MAY-10                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : BM14                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.976                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARMOSAIC 225 MM CCD               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 29549                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.770                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 30.150                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.9                               
REMARK 200  DATA REDUNDANCY                : 6.900                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.07400                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 9.9000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.77                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.82                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 77.4                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.42600                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: MOLREP                                                
REMARK 200 STARTING MODEL: PDB ENTRY 3SPX                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 42.26                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.13                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: KSCN, PEG 3350, PH 6.5, VAPOR            
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 289K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X+1/2,Y+1/2,-Z                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000       57.65000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       30.96500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       57.65000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       30.96500            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 7840 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 22920 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -64.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 548  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 574  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 651  LIES ON A SPECIAL POSITION.                          
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     1                                                      
REMARK 465     SER A   321                                                      
REMARK 465     SER A   322                                                      
REMARK 465     LEU A   323                                                      
REMARK 465     PRO A   324                                                      
REMARK 465     VAL A   325                                                      
REMARK 465     ALA A   326                                                      
REMARK 465     LEU A   327                                                      
REMARK 465     GLU A   328                                                      
REMARK 465     HIS A   329                                                      
REMARK 465     HIS A   330                                                      
REMARK 465     HIS A   331                                                      
REMARK 465     HIS A   332                                                      
REMARK 465     HIS A   333                                                      
REMARK 465     HIS A   334                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   CB   ASP A     6     O    HOH A   652              2.12            
REMARK 500   ND2  ASN A    10     O    HOH A   652              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   CB   ALA A     3     NH2  ARG A   111     1554     2.17            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    SER A 274   CB    SER A 274   OG     -0.093                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    LEU A  18   CB  -  CG  -  CD2 ANGL. DEV. =  12.3 DEGREES          
REMARK 500    MET A  47   CG  -  SD  -  CE  ANGL. DEV. = -10.7 DEGREES          
REMARK 500    ARG A  94   NE  -  CZ  -  NH1 ANGL. DEV. =   3.7 DEGREES          
REMARK 500    ARG A 110   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500    ARG A 111   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.8 DEGREES          
REMARK 500    ASP A 254   CB  -  CG  -  OD1 ANGL. DEV. =   7.0 DEGREES          
REMARK 500    ARG A 317   NE  -  CZ  -  NH1 ANGL. DEV. =   6.4 DEGREES          
REMARK 500    ARG A 317   NE  -  CZ  -  NH2 ANGL. DEV. =  -7.0 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    GLN A  21       52.99     38.71                                   
REMARK 500    ASN A  28      -85.71   -124.69                                   
REMARK 500    THR A 165      -67.98   -127.93                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 ASP B    1     TRP B    2                 -131.27                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PEG A 401                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 402                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR CHAIN B OF TETRAPEPTIDE DWSI      
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3SPX   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3TBH   RELATED DB: PDB                                   
DBREF  3T4P A    1   325  UNP    G1C2I2   G1C2I2_LEIDO     1    325             
DBREF  3T4P B    1     4  PDB    3T4P     3T4P             1      4             
SEQADV 3T4P ALA A  326  UNP  G1C2I2              EXPRESSION TAG                 
SEQADV 3T4P LEU A  327  UNP  G1C2I2              EXPRESSION TAG                 
SEQADV 3T4P GLU A  328  UNP  G1C2I2              EXPRESSION TAG                 
SEQADV 3T4P HIS A  329  UNP  G1C2I2              EXPRESSION TAG                 
SEQADV 3T4P HIS A  330  UNP  G1C2I2              EXPRESSION TAG                 
SEQADV 3T4P HIS A  331  UNP  G1C2I2              EXPRESSION TAG                 
SEQADV 3T4P HIS A  332  UNP  G1C2I2              EXPRESSION TAG                 
SEQADV 3T4P HIS A  333  UNP  G1C2I2              EXPRESSION TAG                 
SEQADV 3T4P HIS A  334  UNP  G1C2I2              EXPRESSION TAG                 
SEQRES   1 A  334  MET ALA ALA PRO PHE ASP LYS SER LYS ASN VAL ALA GLN          
SEQRES   2 A  334  SER ILE ASP GLN LEU ILE GLY GLN THR PRO ALA LEU TYR          
SEQRES   3 A  334  LEU ASN LYS LEU ASN ASN THR LYS ALA LYS VAL VAL LEU          
SEQRES   4 A  334  LYS MET GLU CYS GLU ASN PRO MET ALA SER VAL LLP ASP          
SEQRES   5 A  334  ARG LEU GLY PHE ALA ILE TYR ASP LYS ALA GLU LYS GLU          
SEQRES   6 A  334  GLY LYS LEU ILE PRO GLY LYS SER ILE VAL VAL GLU SER          
SEQRES   7 A  334  SER SER GLY ASN THR GLY VAL SER LEU ALA HIS LEU GLY          
SEQRES   8 A  334  ALA ILE ARG GLY TYR LYS VAL ILE ILE THR MET PRO GLU          
SEQRES   9 A  334  SER MET SER LEU GLU ARG ARG CYS LEU LEU ARG ILE PHE          
SEQRES  10 A  334  GLY ALA GLU VAL ILE LEU THR PRO ALA ALA LEU GLY MET          
SEQRES  11 A  334  LYS GLY ALA VAL ALA MET ALA LYS LYS ILE VAL ALA ALA          
SEQRES  12 A  334  ASN PRO ASN ALA VAL LEU ALA ASP GLN PHE ALA THR LYS          
SEQRES  13 A  334  TYR ASN ALA LEU ILE HIS GLU GLU THR THR GLY PRO GLU          
SEQRES  14 A  334  ILE TRP GLU GLN THR ASN HIS ASN VAL ASP CYS PHE ILE          
SEQRES  15 A  334  ALA GLY VAL GLY THR GLY GLY THR LEU THR GLY VAL ALA          
SEQRES  16 A  334  ARG ALA LEU LYS LYS MET GLY SER HIS ALA ARG ILE VAL          
SEQRES  17 A  334  ALA VAL GLU PRO THR GLU SER PRO VAL LEU SER GLY GLY          
SEQRES  18 A  334  LYS PRO GLY PRO HIS LYS ILE GLN GLY ILE GLY PRO GLY          
SEQRES  19 A  334  PHE VAL PRO ASP VAL LEU ASP ARG SER LEU ILE ASP GLU          
SEQRES  20 A  334  VAL LEU CYS VAL ALA GLY ASP ASP ALA ILE GLU THR ALA          
SEQRES  21 A  334  LEU LYS LEU THR ARG SER ASP GLY VAL PHE CYS GLY PHE          
SEQRES  22 A  334  SER GLY GLY ALA ASN VAL TYR ALA ALA LEU LYS ILE ALA          
SEQRES  23 A  334  GLU ARG PRO GLU MET GLU GLY LYS THR ILE VAL THR VAL          
SEQRES  24 A  334  ILE PRO SER PHE GLY GLU ARG TYR LEU SER THR THR LEU          
SEQRES  25 A  334  TYR ARG SER VAL ARG ASP GLU VAL SER SER LEU PRO VAL          
SEQRES  26 A  334  ALA LEU GLU HIS HIS HIS HIS HIS HIS                          
SEQRES   1 B    4  ASP TRP SER ILE                                              
MODRES 3T4P LLP A   51  LYS                                                     
HET    LLP  A  51      24                                                       
HET    PEG  A 401       7                                                       
HET     CL  A 402       1                                                       
HETNAM     LLP (2S)-2-AMINO-6-[[3-HYDROXY-2-METHYL-5-                           
HETNAM   2 LLP  (PHOSPHONOOXYMETHYL)PYRIDIN-4-                                  
HETNAM   3 LLP  YL]METHYLIDENEAMINO]HEXANOIC ACID                               
HETNAM     PEG DI(HYDROXYETHYL)ETHER                                            
HETNAM      CL CHLORIDE ION                                                     
HETSYN     LLP N'-PYRIDOXYL-LYSINE-5'-MONOPHOSPHATE                             
FORMUL   1  LLP    C14 H22 N3 O7 P                                              
FORMUL   3  PEG    C4 H10 O3                                                    
FORMUL   4   CL    CL 1-                                                        
FORMUL   5  HOH   *166(H2 O)                                                    
HELIX    1   1 SER A   14  ILE A   19  5                                   6    
HELIX    2   2 CYS A   43  ASN A   45  5                                   3    
HELIX    3   3 VAL A   50  GLU A   65  1                                  16    
HELIX    4   4 GLY A   81  GLY A   95  1                                  15    
HELIX    5   5 SER A  107  PHE A  117  1                                  11    
HELIX    6   6 PRO A  125  ALA A  127  5                                   3    
HELIX    7   7 LEU A  128  ASN A  144  1                                  17    
HELIX    8   8 LYS A  156  THR A  165  1                                  10    
HELIX    9   9 THR A  165  THR A  174  1                                  10    
HELIX   10  10 GLY A  188  MET A  201  1                                  14    
HELIX   11  11 ASP A  241  ILE A  245  5                                   5    
HELIX   12  12 ALA A  252  GLY A  268  1                                  17    
HELIX   13  13 GLY A  272  GLU A  287  1                                  16    
HELIX   14  14 ARG A  288  GLU A  292  5                                   5    
HELIX   15  15 PHE A  303  LEU A  308  5                                   6    
HELIX   16  16 THR A  310  LEU A  312  5                                   3    
HELIX   17  17 TYR A  313  VAL A  320  1                                   8    
SHEET    1   A 6 ALA A  24  TYR A  26  0                                        
SHEET    2   A 6 LYS A  36  MET A  41 -1  O  LEU A  39   N  LEU A  25           
SHEET    3   A 6 THR A 295  ILE A 300  1  O  ILE A 296   N  VAL A  38           
SHEET    4   A 6 CYS A 180  GLY A 184  1  N  CYS A 180   O  VAL A 297           
SHEET    5   A 6 ARG A 206  PRO A 212  1  O  VAL A 208   N  PHE A 181           
SHEET    6   A 6 GLU A 247  VAL A 251  1  O  LEU A 249   N  ALA A 209           
SHEET    1   B 4 GLU A 120  THR A 124  0                                        
SHEET    2   B 4 LYS A  97  PRO A 103  1  N  ILE A 100   O  GLU A 120           
SHEET    3   B 4 ILE A  74  SER A  78  1  N  VAL A  75   O  ILE A  99           
SHEET    4   B 4 ALA A 147  LEU A 149  1  O  VAL A 148   N  ILE A  74           
LINK         C   VAL A  50                 N   LLP A  51     1555   1555  1.34  
LINK         C   LLP A  51                 N   ASP A  52     1555   1555  1.35  
CISPEP   1 ALA A    2    ALA A    3          0        -2.61                     
SITE     1 AC1  6 ASN A  31  THR A  33  ALA A  35  LYS A  36                    
SITE     2 AC1  6 HOH A 511  HOH A 576                                          
SITE     1 AC2  3 GLY A 272  GLY A 275  SER A 302                               
SITE     1 AC3 17 SER A  79  SER A  80  GLY A  81  ASN A  82                    
SITE     2 AC3 17 THR A  83  ARG A 110  MET A 130  GLN A 152                    
SITE     3 AC3 17 GLY A 224  PRO A 225  HIS A 226  GLY A 230                    
SITE     4 AC3 17 GLY A 232  PRO A 233  HOH A 664  HOH B 101                    
SITE     5 AC3 17 HOH B 102                                                     
CRYST1  115.300   61.930   43.440  90.00  90.00  90.00 P 21 21 2     4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.008673  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.016147  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.023020        0.00000